Chapter 12+13 Flashcards Preview

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Flashcards in Chapter 12+13 Deck (44)
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1

cell division

reproduction of cells

2

Cell cycle

cell division cycle

3

chromosomes

packages of DNA

4

genome

DNA's genetic information

5

somatic cells

have 46 chromosomes in humans

6

gametes

have 23 chromosomes in humans

7

sister chromatids

chromosome has two of them

8

centromere

condensed "waist" of chromosome

9

mitosis

somatic division

10

cytokinesis

division of the cytoplasm

11

meiosis

gamete division

12

interphase

cell growth

13

G1 phase

cell grows

14

S phase

cell synthesizes

15

G2 phase

cell makes preparations for division

16

centrosome

where spindle microtubules form

17

mitotic spindle

divides cells

18

aster

array of short microtubules from centrosome

19

kinetochore

where mitotic spindle connects

20

metaphase plate

where chromosomes line up

21

cleavage furrow

where cell beings to divide by pinching for animals

22

cell plate

instead of cleavage, wall forms for plants

23

binary fission

mitosis for bacteria

24

cell cycle control system

timing system that controls different phases of cell division

25

checkpoint

tells cell to either stop or go based on regulation

26

G0 phase

when cell stops at checkpoint

27

CDKs and MPF

as a pair, drive cell cycle

28

growth factor

also stimulates growth

29

density-dependent inhibition

container bottom layer analogy

30

anchorage dependence

cell culture has to attach to substrate